Something to remember is that putting nitrous on a forced induction engine will produce more power than the same size shot on a N/A motor. This is due to the cooling effect the nitrous has on the incoming air.
You might be able to run a small (30-50) shot at about 3000 rpms til about 5000 to help the vortech get into boost. It would require a window switch and some tuning to make sure it would be safe.
I would not recommend it myself.